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Dimensions and parameters of low-voltage wiring ducts for relay protection

Dimensions and parameters of low-voltage wiring ducts for relay protection

Low-voltage wiring ducts for relay protection are typically made of PVC or halogen-free materials, with widths ranging from 24 mm to 120 mm and heights from 24 mm to 80 mm, featuring slotted or solid designs for organized cable routing.Key DimensionsWidths: Common widths include 24, 40, 60, 80, 100, and 120 mm, allowing flexibility for different cable volumes and panel sizes .Heights/Depths: Heights typically range from 24 mm to 80 mm, providing sufficient space for low-voltage wiring without overcrowding .Rib Spacing: Slotted ducts have ribs that can be broken off to accommodate different wire sizes, with scorelines designed for easy removal without sharp edges .Length: Standard duct lengths are usually 1 meter, but can be cut to fit specific panel dimensions.Material and Safety ParametersMaterial: PVC is common for standard industrial applications, while halogen-free PC/ABS is used for environments requiring low smoke and halogen-free properties .Flame Retardancy: Many ducts comply with UL94-V0 standards, ensuring self-extinguishing properties .Low Smoke Halogen Free (LSHF): Suitable for public buildings, railways, and high-rise applications where fire safety is critical .Design FeaturesSlotted vs Solid: Slotted ducts allow easier insertion and routing of wires, while solid ducts provide maximum protection .Cable Management: Ducts often include side holes for cable ties, dividers for separating circuits, and mounting brackets for secure installation .Ease of Maintenance: Covers are designed for easy removal, and ribs can be broken off without tools, speeding up installation and maintenance .AccessoriesDividers: Separate different circuits or voltage levels within the same duct.Mounting Brackets: Facilitate secure attachment to panels or DIN rails.Wire Retainers: Slide along the duct base to hold cables in place without screws . These parameters ensure that wiring ducts for relay protection provide organized, safe, and maintainable cable routing, meeting both industrial and safety standards. Proper selection of duct width, height, material, and accessories is essential for reliable operation of low-voltage relay systems.

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